Power Systems A buchholz relay is used for protection of a transformer against all external faults both 1 and 2 nether 1 nor 2 protection of a transformer against all internal faults protection of a transformer against all external faults both 1 and 2 nether 1 nor 2 protection of a transformer against all internal faults ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station supplies the peak load of 50 MW, 40 MW and 70 MW to three localities. The annual load factor is 0.50 p.u. and the diversity factor of the load at the station is 1.55 the maximum demand on the station and average load respectively will be 52 MW. 51.61 MW. 53 MW. 57.5 MW. 52 MW. 51.61 MW. 53 MW. 57.5 MW. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which one of following is employed as a moderator by CANDU type of slow thermal nuclear reactors Water. Heavy water. Beryllium. Graphite. Water. Heavy water. Beryllium. Graphite. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm cosωt? 4.68 msec 1.47 msec 9.68 2.63 msec 4.68 msec 1.47 msec 9.68 2.63 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following circuit breakers produce least arc energy? Air break CB. Minimum oil CB. Air blast CB. Plain oil CB. Air break CB. Minimum oil CB. Air blast CB. Plain oil CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In coal fired thermal power stations, what are the electrostatic precipitators used for? To remove dust particles setting on the bus bar conductors in the station switch yard To collect the dust particles from the flue gases All of these To keep the air heaters clean To remove dust particles setting on the bus bar conductors in the station switch yard To collect the dust particles from the flue gases All of these To keep the air heaters clean ANSWER DOWNLOAD EXAMIANS APP
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